N20 air permeability detector

A technology of air permeability and detectors, which is applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve problems such as the inability to measure the continuity of test paper, achieve the effects of reducing cutting processes, high accuracy, and improving measurement efficiency

Pending Publication Date: 2020-07-28
ENDIAN SCI & TECH DEV OF YUNNAN
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AI Technical Summary

Problems solved by technology

[0005] Compared with the original technology, the structure of the system is simpler, easy to repair and maintain, and the manufacturing cost of the equipment is lower, which is convenient for popularization and application; however, the test paper of this scheme is placed manually, and it needs to Shut down the equipment and replace with new test paper to continue the measurement, and the test paper cannot be continuously measured

Method used

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  • N20 air permeability detector
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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] Such as Figure 1-7 Shown, a kind of N20 air permeability detector comprises box body 1, detection device, laminar flow element, pressure regulating device and PLC programmable controller; There is a printer 102, a pressure regulating valve 103, a test interface 108, a test head cylinder interface 107, a test head cable interface 106, a manual test switch 105, and a key switch 104 are provided on the front of the box body 1. Sensors, high-precision differential pressure sensors, stepper motor controllers.

[0030]The detection device is composed of a test head 3 and an automatic paper guide system 2. The automatic paper guide system 2 includes a housing 201, a pressure wheel assembly 203, a pillar 204 and a handle 202. The bottom panel of the housing 201 is rectangular The top panel is a "concave" shaped plate with grooves, the bottom four inne...

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Abstract

The invention discloses an N20 air permeability detector. The N20 air permeability detector comprises a box body, a detection device, a laminar flow element, a pressure adjusting device and a PLC; a human-computer interface is arranged at the right end of the top surface of the box body; a printer is arranged at the left end of the top surface of the box body; a pressure regulating valve interface, a test interface, a test head cylinder interface, a test head cable interface, a manual test switch and a key switch are arranged on the front surface of the box body; and a high-precision pressuresensor, a high-precision differential pressure sensor and a stepping motor controller are arranged in the box body; the detection device is composed of a test head and an automatic paper guide system;the pressure adjusting device comprises an electromagnetic valve, a precision pressure adjusting valve and a stepping motor; and the PLC is installed in the box body. The detector is simple in structure, easy and convenient to operate, capable of automatically counting and outputting printed measurement results, convenient for a user to process and store data and high in accuracy.

Description

technical field [0001] The invention relates to an instrument for testing or analyzing materials by means of measuring the physical properties of the materials, in particular to an air permeability detector. Background technique [0002] Cigarette ventilation and dilution technology is an important means of reducing harm and coke in cigarettes. It can effectively reduce most substances in cigarette smoke, especially for gas phase components with high diffusion coefficients; cigarette filter dilution The rate is generally controlled by the perforated air permeability of the tipping paper used on it. Researchers have found that the use of perforated tipping paper can effectively control the amount of tar in cigarettes. This technology is used as a newer and more effective tar reduction method. Technology is developing rapidly, and the air permeability of perforated tipping paper directly affects the amount of tar in cigarettes; therefore, in order to maintain a stable taste an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08G01N7/10
CPCG01N7/10G01N15/0826
Inventor 何金星吴绍云李寅辛应伟张珏铭
Owner ENDIAN SCI & TECH DEV OF YUNNAN
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